List of tallest towers in the world

This is a list of towers that fulfill the engineering definition of a tower 'a tall man-made structure, always taller than it is wide, meant for regular access by humans, but not for living in or office work, and are self-supporting or free-standing, which means no guy-wires for support.' The definition means the exclusion from this list of continuously habitable buildings and skyscrapers as well as radio and TV masts. Bridge towers or pylons, chimneys, transmission towers, and most large statues allow human access for maintenance, but not as part of their normal operation, and are therefore not considered to be towers.

Towers are most often built to use their height for various purposes and can stand alone or as part of a larger structure. Some common purposes are for telecommunications, and as a viewing platform.

The Tokyo Skytree, completed in February 2012, reaches a height of 634 m (2,080 ft), making it the tallest tower, and second tallest free standing structure in the world.[1][2][3]

The following towers consist of a free standing basement towers with a guyed structure on the top. The basement can be made of reinforced concrete or of lattice steel. All of the below are over 100 metres.